mamabeavabjo wrote:No caterpillars have been injured (so far) from this activity!
ROFL!!!

Sounds like lots of fun! Maybe not for the caterpillars though.
As for R&S 3, you'll want the TM either way. The lessons are just do a lesson a day for about 4 days per week

I don't think you'll find Bigger to be too light if you're daughter is within the extension range. Though, you'll of course want to bump up the math and LA. To do that, you could get the TM for Preparing and use the LA/DITHOR schuedule and the next level of dictation for her from there, as well as math if that fits right. Then next year, PHFHG also schedules R&S 4 and already has the next level of dictation she would need if I remember correctly, so you could do PHFHG as-is that year
ETA: I just realized your DD is 8....I REALLY don't think you'll find Bigger too light

At all!! And I've done the level 4/5 book pack with the level 2/3 workbook and plans in DITHOR with even my 9yo 4th grader (form 8-9 and 3rd-4th). We've just recently started the 4/5 workbook and plans. It's a great way to start DITHOR.